Section 28
Liability of agent signing
Chapter 3: Parties to notes, bills and cheques
An agent who signs his name to a promissory note, bill of exchange or cheque without indicating thereon that he signs as agent, or that he does not intend thereby to incur personal responsibility, is liable personally on the instrument, except to those who induced him to sign upon the belief that the principal only would be held liable.
The Negotiable Instruments Act, 1881 (Act No. 26 of 1881). From the updated text on India Code, with later amendments. Being checked against the official copy; amendment notes are not shown yet.